Hi,
I have SAMA5D28CU Custom board Based on the SAMA5D2 Xplained Board. Only Difference is we changed the 512MB RAM to 256MB RAM.
I try to boot it from SD CARD. But I can not boot From SD card successfully.
AND Also i edited the file "AT91bootstrap/board/sama5d2_xplained/sama5d2_xplainedsd_uboot_defconfig"
Added "CONFIG_RAM_256MB=y" and Removed "CONFIG_RAM_512MB=y"
Compiled and port into my board. And power on the board, booting is struck in the Bootstrap. Boot log is below.